NCL AMERICA
NCL 538B
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Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two AT Interface (IDE) drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
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CONNECTIONS | |
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Function |
Location |
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34-pin control cable connector-floppy drive |
CN3 |
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40-pin AT Interface (IDE) connector |
CN4 |
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4-pin connector-drive active LED |
CN10 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
| » |
DACK2 (Floppy drive DMA Acknowledge) (hard-wired) |
JP1 |
pins 1 & 2 closed |
|
DACK3 (Floppy drive DMA Acknowledge) |
JP1 |
pins 2 & 3 closed | |
| » |
IRQ6 (Floppy drive Interrupt Request) (hard-wired) |
JP2 |
pins 1 & 2 closed |
|
IRQ10 (Floppy drive Interrupt Request) |
JP2 |
pins 2 & 3 closed | |
| » |
IRQ14 (Hard drive Interrupt Request) |
JP3 |
pins 1 & 2 closed |
|
IRQ15 (Hard drive Interrupt Request) |
JP3 |
pins 2 & 3 closed | |
| » |
DRQ2 (Floppy drive DMA Request) (hard-wired) |
JP4 |
pins 1 & 2 closed |
|
DRQ3 (Floppy drive DMA Request) |
JP4 |
pins 2 & 3 closed | |
| » |
Hard drive port address is 1FO-1F7h |
JP6 |
open |
|
Hard drive port address is 17O-177h |
JP6 |
closed | |
| » |
Floppy drive port address is 3F2-3F7h |
JP7 |
open |
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Floppy drive port address is 372-377h |
JP7 |
closed | |
| » |
Normal operation |
JP8 |
open |
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Diagnostic mode |
JP8 |
closed | |
| » |
Zero wait state disabled |
JP9 |
open |
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Zero wait state enabled |
JP9 |
closed | |
| » |
BIOS enabled |
JP11 |
closed |
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BIOS disabled |
JP11 |
open | |
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BIOS ADDRESS | |||
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Address |
Jumper JP5 |
Jumper JP5A | |
| » |
C800h |
open |
open |
|
CC00h |
closed |
open | |
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D800h |
open |
closed | |
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DC00h |
closed |
closed | |
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MISCELLANEOUS TECHNICAL NOTES |
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Debug: G=C800:5 sets up custom parameters for IDE drives |
